Bulk Renamer
Use this to tidy messy names like `IMG_1234.jpg`, `scan 001.png`, `document(1)(2).pdf`, number photos sequentially, give a project's files a consistent naming scheme, or clean spaces into underscores.
Free to download, install and update. No signup; all 76 tools are free within daily limits, Pro only lifts the limits.
What it does
Use this to tidy messy names like `IMG_1234.jpg`, `scan 001.png`, `document(1)(2).pdf`, number photos sequentially, give a project's files a consistent naming scheme, or clean spaces into underscores. It is the natural twin of the File Organizer: first sort by type, then name them properly.
How to use it
- 1Click Choose folder and pick the folder to rename in.
- 2Set your rules (any of them, as many as you like):
- 3Read the Preview table to see each file's old and new name. Conflicts are flagged in red.
- 4Press Rename.
- 5If you are not happy with the result, press Undo to reverse the last batch.
Use cases
Organize phone photos
Choose folder, prefix holiday_, sequential number (at end), apply. holiday_001.jpg, holiday_002.jpg...
Clean spaces
Spaces → underscore, letter case lowercase. Project Deck.pdf → project_deck.pdf.
Change a version tag
Find final, replace v2. report final.docx → report v2.docx.
Sort by date
Add date prefix. notes.txt → 2026-06-12_notes.txt.
Frequently asked questions
Is Bulk Renamer free?
Yes. Downloading, installing and updating BulkPro is free and requires no signup. All 76 tools work for free within daily usage limits; Pro plans only lift the daily limits of the modules you pick.
Local processing
Runs on your CPU/GPU. No file leaves your machine.
Batch ready
Process dozens or thousands of files in one run.
Part of BulkPro
Bundled with 76 tools across 7 modules: one install, one app.
Full UI reference, step-by-step workflows, edge cases
Every input, button, and behavior documented for advanced users.